If you are looking for a good value on the beach in a reasonably safe area (Isla Verde) we stayed at the Courtyard by Marriott, which is on a nice beach and very close to the airport as I assume you fly home the next morning. The price was right and included a full breakfast buffet which again saved $$. If you want to splurge we loved the Intercontinental or Wyndham El San Juan-both are nearby on the same beach but both hotels are definitely up a few notches. But be careful in San Juan wherever you go, especially at night!!